qapi/ui: Drop temporary 'prefix'

Recent commit "qapi: Smarter camel_to_upper() to reduce need for
'prefix'" added a temporary 'prefix' to delay changing the generated
code.

Revert it.  This improves DisplayGLMode's generated enumeration
constant prefix from DISPLAYGL_MODE to DISPLAY_GL_MODE.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240904111836.3273842-9-armbru@redhat.com>
10 files changed